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Render gypsum

A technique for plaster plaster and gypsum stone, which is applied in the field of plaster plaster, which can solve problems such as poor adhesion, unstable quality of plaster plaster, and high cost, and achieve the effects of sufficient raw materials, avoiding hollowing and cracking, and low price

Inactive Publication Date: 2009-12-16
山东润东建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of this application is to overcome the above-mentioned deficiencies of unstable quality, high cost, and poor adhesion of plastering plaster, and provide a new type of environmentally friendly plastering mortar, that is, plastering plaster

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Below take 1000Kg (1 ton) calcined gypsum powder as an example to further illustrate the implementation of the present invention.

[0026] 1. First crush and homogenize the gypsum stone, then grind it, and select 120-mesh raw gypsum powder through a powder separator;

[0027] 2. Put 120-mesh gypsum powder into the fluidized furnace for calcination for 1 hour, and the calcination temperature is controlled at 160°C to become calcined gypsum powder;

[0028] 3. Aging the calcined gypsum powder for 9 days;

[0029] 4. Accurately weigh 1000Kg of calcined gypsum powder, 2.1Kg of retarder, 1.5Kg of adhesive, 2Kg of water-retaining agent, 50 kg of slaked lime and 1500Kg of particle-grade sand, first put the gypsum powder into the mixer and stir, and then Put the retarder, adhesive and water-retaining agent into the mixer and fully mix with the gypsum powder, and finally put the granular grade sand into the mixer and mix for ten minutes.

[0030] The retarder is at least one o...

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Abstract

The invention discloses a stucco gypsum, which comprises calcined gypsum powder, retarder, adhesive, water retaining agent, slaked lime and particle-grade sand according to a certain ratio, and the weighed calcined gypsum powder is put into a mixer. Mix, then put the retarder, adhesive, water retaining agent and slaked lime into the mixer and calcined gypsum powder to fully mix, and finally put the granular grade sand into the mixer and mix for ten minutes. The plastering gypsum of the present invention has unique and excellent water retention, cohesiveness and self-expansion compensation function, avoids the phenomenon of hollowing and cracking, and has low cost, and can be popularized and used in a wide range.

Description

technical field [0001] The present invention relates to building materials, especially plaster. Background technique [0002] With the rapid development of new energy-saving wall materials, coal gangue, fly ash and aerated concrete blocks, fly ash bricks, gypsum blocks, Yellow River silt bricks, various lightweight wall panels, and composite wall panels have been introduced. The main new wall material product system. A large number of popularization and application of these new wall materials have encountered the problem that cement mortar plastering materials are not suitable for them, especially new wall materials such as autoclaved fly ash bricks and aerated concrete blocks. Large, even if the treatment methods such as interface agent and external steel wire mesh are used, the phenomenon of hollowing and cracking often occurs, which has become a common quality problem that is difficult to solve in the construction industry today, and directly affects the popularization a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B14/06
CPCC04B2111/34C04B28/14
Inventor 董志强董斌董杰
Owner 山东润东建材有限公司
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